Alert archive / Tennessee / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 377, NWS Nashville, TN

July 30, 1998Giles County, Lawrence County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Jul 30, 1998, 11:14 PM CDT for Giles County, Lawrence County, Tennessee. It was in force for 46 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Jul 30, 1998, 11:14 PM CDT (04:14 UTC)
Expired: Jul 31, 1998, 12:00 AM CDT
In force: 46 min
Issued by: NWS Nashville, TN
Area: Whole counties

Counties Giles County, TN, Lawrence County, TN

What was reported inside it

Time	Report	Where	Remark
Jul 30, 11:57 PM CDT	Thunderstorm Wind 50	Lynnville, TN	Trees were blown down.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 4.2 hours before the alert went out and 116 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1975 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 923 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 129 m²/s²
0-3 km storm-relative helicity: 217 m²/s²
Significant tornado parameter: 1.4
Supercell composite: 7.6

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

935 
WUUS1 KBNA 310416 RRA
SVRBNA
TNC055-099-310500-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NASHVILLE TN
1114 PM CDT THU JUL 30 1998

THE NATIONAL WEATHER SERVICE IN NASHVILLE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  GILES COUNTY IN MIDDLE TENNESSEE
  LAWRENCE COUNTY IN MIDDLE TENNESSEE

* UNTIL 1200 AM CDT

* AT 1110 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A LINE OF SEVERE THUNDERSTORMS IN NORTHERN LAWRENCE COUNTY...
  MOVING SOUTHEAST AT 30 MPH.  THE LINE OF SEVERE THUNDERSTORMS
  WILL MOVE THROUGH THE LAWRENCEBURG AND LYNNVILLE AREA BY 1120 PM
  AND LORETTO AND PULASKI BY 1130 PM.

DAMAGING WINDS AND HEAVY RAIN ARE LIKELY. GO INSIDE A STURDY
BUILDING AND STAY AWAY FROM WINDOWS

BOYD

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Nashville, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 30, 7:16 PM CDT, 3 hours 58 minutes earlier.

Area forecast discussion, Jul 30, 7:16 PM CDT, 3 hours 58 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
716 PM CDT THU JUL 30 1998

MCS DVLPG OVR SE MO/W KY LAST CPL OF HOURS. MANY PARAMETERS POINT TWD
CONTD DVLPMT ERY TNGT. ADAP PGM SHOWS MOST UNSTBL AIR ACRS W TN INTO SE
MO/W KY...WITH BULLS-EYE POS MSTR CONVERGENCE CHG SAME AREA...ETC. ALSO
S/WV INDICATED BY 18Z RUC MDL MOVG E ACRS AREA TNGT.

THKNS PATTERN AND PCGRIDDS MACRO SUGGEST MCS SHUD TURN TO SE...BUT MOV
RATHER SLOLY TNGT. HI SFC AND 850 MB DWPTS/HI PRECIPITABLE WATER
INDICATE POTENTIAL FOR VRY HVY RAINFALL TOO.

LOOKS LIKE ETA MDL WITH ITS SLGTLY SLOWER SWD MOVMT OF FNT BEST THIS
EVE THAN SLGTLY FASTER MOVMT PER NGM. FNT SHUD SLIP TO S OF BNA BY
DAYBREAK FRI.

STEIGERWALDT

In the hours before

Local storm report, Jul 30, 9:41 PM CDT, 1 hour 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TENNESSEE
941 PM CDT THU JUL 30 1998

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0845 PM                              TN   WIND DAMAGE
07/30/98   HOUSTON                        TREES BLOWN DOWN 5 MILES
                                          SOUTH OF ERIN AND 3 NORTH
                                          OF MCKINNON.  REPORTED BY
                                          LOCAL LAW ENFORCEMENT.

BOYD

Local storm report, Jul 30, 9:41 PM CDT, 1 hour 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TENNESSEE
941 PM CDT THU JUL 30 1998

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0845 PM                              TN   WIND DAMAGE
07/30/98   HOUSTON                        TREES BLOWN DOWN 5 MILES
                                          SOUTH OF ERIN AND 3 NORTH
                                          OF MCKINNON.  REPORTED BY
                                          LOCAL LAW ENFORCEMENT.

BOYD

Local storm report, Jul 30, 10:42 PM CDT, 32 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TENNESSEE
1042 PM CDT THU JUL 30 1998

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0845 PM                              TN   WIND DAMAGE
07/30/98   HOUSTON                        TREES BLOWN DOWN 5 MILES
                                          SOUTH OF ERIN AND 3 NORTH
                                          OF MCKINNON.  REPORTED BY
                                          LOCAL LAW ENFORCEMENT.

1010 PM                              TN   .88 INCH HAIL
07/30/98   HICKMAN                        NICKEL SIZE HAIL AT THE
                                          INTERSECTION OF HIGHWAY
                                          100 AND HIGHWAY 46 IN
                                          EASTERN HICKMAN COUNTY.
                                          REPORTED BY LOCAL LAW
                                          ENFORCEMENT.

BOYD

Local storm report, Jul 30, 10:42 PM CDT, 32 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NASHVILLE TENNESSEE
1042 PM CDT THU JUL 30 1998

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0845 PM                              TN   WIND DAMAGE
07/30/98   HOUSTON                        TREES BLOWN DOWN 5 MILES
                                          SOUTH OF ERIN AND 3 NORTH
                                          OF MCKINNON.  REPORTED BY
                                          LOCAL LAW ENFORCEMENT.

1010 PM                              TN   .88 INCH HAIL
07/30/98   HICKMAN                        NICKEL SIZE HAIL AT THE
                                          INTERSECTION OF HIGHWAY
                                          100 AND HIGHWAY 46 IN
                                          EASTERN HICKMAN COUNTY.
                                          REPORTED BY LOCAL LAW
                                          ENFORCEMENT.

BOYD

The office that day

Everything else NWS Nashville, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 30, 8:16 PM CDT	Severe Thunderstorm Warning	OHX	Benton, Houston, Stewart	49 min
Jul 30, 8:42 PM CDT	Severe Thunderstorm Warning	OHX	Lewis	33 min
Jul 30, 9:19 PM CDT	Flash Flood Warning	OHX	Lewis, Perry	3 hr
Jul 30, 9:59 PM CDT	Severe Thunderstorm Warning	OHX	Hickman, Maury, Williamson	31 min
Jul 31, 12:08 AM CDT	Severe Thunderstorm Warning	OHX	Putnam, White	32 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 1998 Every severe thunderstorm warning in 1998

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.